[Mono-list] problems while building

[mono devel]

hello , 
I did a anonCVS update of mono and mcs  and i got this
error while running 
"make" under mcs directory :

MONO_PATH="../../../class/lib:$MONO_PATH" mono 
../../../mcs/mcs.exe /r:mscorlib.dll  -d:NET_1_1
-d:ONLY_1_1 -g /noconfig  /target:library
/out:../../../class/lib/I18N.dll @I18N.dll.sources
Corlib not in sync with this runtime: expected corlib
version 10, found 13.
Download a newer corlib or a newer runtime at
http://www.go-mono.com/daily.

1)i want to know if i am supposed to download the
newer corlib every time i do a 
anonCVS update.
  
2)Also i want to know directory in which the newly
downloaded corlib should be placed.

please guide me,
thanks,
vineeth

=====
vineeth N

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